A store has a sale with 15 % off every item. When you enter the store, you receive a coupon that states you receive an additional 4% off any discounted price. If you
purchase an item that sells for $400, what will your total discount be (a) in dollar amount
and (b) in percent?

4th option is correct xy=-10

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the correct option is 2.

step-by-step explanation:

according to the given information triangle abc is a right angle triangle with right angle at a. segment ab is 5 and segment ac is 7. point d is on segment bc and angles adb and adc are right angles.

it is given that triangles abd, cad, and cba are similar.

two triangles are similar if their corresponding sides are proportional.

in triangle cba, using pythagoras theorem

                      )

triangle abd and cba are similar,

                            (2)

triangle cad and cba are similar,

                      )

using (1), (2) and (3), we get

hence proved.

therefore option 2 is correct.

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step-by-step explanation:

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step-by-step explanation: